Fix extra bracket in save.sql

It looks like there's an extra (unintended) bracket in save.sql

With the bracket:
```CPD-MacBook-Pro:mongolike Admin$ psql Tavern < save.sql
ERROR:  SyntaxError: Unexpected token if
DETAIL:  save() LINE 23:   if (res == 0) { // If it didnt affect anything, it must be a new row. Insert```

With it removed:
```
CPD-MacBook-Pro:mongolike Admin$ psql Tavern < save.sql
CREATE FUNCTION
```